There are many different polyglots all over the world and some of them speak languages that are dying. However, not all of the polyglots on the list of the living polyglots speak the endangered languages, but they do concentrate on learning several languages. There are many others, however, who do speak them.

Just because these languages are dying out doesn't mean that they aren't important because they are. At one point these languages were spoken on a daily basis between family and friends. These languages need to be learned or least documented at the very least before they die. These last people who speak the languages are doing whatever they can to help and benefit these languages.